Charles h



(No Model.)

C. H. ROLLINS. PLUMBING ATTACHMENT.

No. 582,148. Patented May 4, `1897.

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CHARLES H. ROLLINS, OF VATERTOVV N MASSACHUSETTS, ASSIGNOR OF ONE-HALFTO DAVID FLANDERS, OF SAME PLACE.

PLUMBING ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 582,148, dated May 4,1897.

Application iiled February 19, 1896. Serial No. 579,866. (No model.)

To cir/ZZ whom t may concern:

Be it known that I, CHAnLns I-I. RoLLrNs, of Watertown, county ofMiddlesex, and State of Massachusetts, have invented an Improvement inPlumbing Attachments, of which the following description, in connectionwith the accompanying drawings, is a specification, like letters on thedrawings representing like parts.

This is an improvement in sewer attachments and test-plugs, beingparticularly applicable to the house-pipe of a house system of drainageand sewerage.

It is the object of my invention to provide an attachment for quicklyand accurately closing the sewer-pipe, the test-plug containing meansfor automatically plugging or cutting off the pipe by insertion therein,and also containing means for quickly and readily running off the waterdown the sewer at the end of the test. y

My invention comprises the various partieulars as hereinafter set forthby description and more particularly pointed out in the claims.

In the accompanying drawings illustrative of my invention, Figure l is acentral vertical section of one form of my invention shown in operativeposition in connection with a housepipe, the latter being also shown insection. Fig. 2 is a cross-sectional View taken on line 2 2 of Fig. l.Fig. 3 is a central vertical section of an adaptation of the closingdevice shown in the other figures, and Fig. 4 is a clamping attachmentfor use with the closing devices. y

In the present embodiment of my invention, A designates an enlargementon the end of a pipe, being in the presentinstance a continuation of theground-pipe A' of the house system which it is desired to test. Thisenlargement A terminates at one end in an internal shoulder a and at itsopposite end preferably in a seat a', being provided intermediately withan internal annular 4flange a2 adjacent the shoulder a. This flange issuitably recessed at one or more points a3 to receive the clampingmember B, as presently described, and is provided on its inner side witha lug or lugs a4 to hold said clamping member B against undue rotation.

C designates a cap adapted to lit tightly over the seat a', a washer orpacking c being preferably interposed, this cap also having in thepresent instance a flange o', fitting snugly within the mouth of theenlargement A. Through a perforation @2in the cap O is passed a suitableholder, shown in Fig. 3 as solid in the form of a bar or belt D andshown in Figs. l and 2 as hollow, constituting the inlet-tube E of thetest-plug. This holder is threaded at or near its outer end to receivethe nut O and carries at a suitable distance from this threaded portionthe clamping member B, before alluded to. The clamping member Bcomprises one or more arms b, two arms being shown, which enter Vtherecesses a3 and are then rotated in engagement with the lugs a4, andthen securely clamped against the llange a2 by means of the nut O.

At the inner end of tube E a flexible and preferably resilient disk ordiaphragm e is carried between two clamping-flanges c c2, the diaphragme being slightly larger than the tube, so that when inserted therein itwill securely seal the same at that point..

A valve-seat e3 and valve c4 are provided to control the inner end ofthe tube, this valve being regulated in the present instance by means ofa rod c5, passing lengthwise of the tube through a gland e, said rodhaving a handle c7 at its outer end for its convenient manipulation. Thetube E is further provided with an inlet-opening e8 for attachment to aforce-pump and with an opening e9 intermediate its ends for the egressand ingress of the fluid used in making the test.

In the use of myinvention, as shown in Fig. l, the tube E is inserted inthe pipe A, the clamp B entering thro ugh the recesses as, and is thenturned slightly, so as to abut the ends of the arms b against the lugsa4. The nut C is then set up snugly, thus clamping the test-plug rigidlyin place and compressing the cap O and the packing c into sealingengagement with the enlargement A. Proper connection having been madebetween the inlet e3 and a source of water under pressure and the valvec4 having been closed the Water is turned on and flowing through theopening e is forced throughout the entire system of pipes being tested,so that if a joint at any IOO point is not tight that fact will be madeevident to the observer by the spurting of the water through the saidloose joint. The disk or diaphragm e absolutely and automaticallyprevents all leakage of the water at that point. The test having beencompleted, the operator grasps the handle e7, opening the valve ed, andpermits the water which has been used in the test to flow back throughthe opening e9, past the valve, and out into the sewer.

The shoulder a limits the movement of the clamping member B and isparticularly advantageous when the latter is of the T-liead form, asshown in Fig. 3, thus insuring accuracy of movement, preventing the samefrom dropping down the pipe, and materially increasing the facility ofadjustment.

The flange a2 is provided within the enlargement A back far enough topermit the coupling together of its pipe with other sections in theordinary manner.

Various changes in form, proportion, and arrangement of the parts of myinvention may be resorted to without departing from the spirit and scopethereof.

Referring to Fig. et, B designates a bar having a hook b' at its innerend and a flattened shank b2, which is provided with a plurality ofperforations b3. This bar is hooked within the pipe A' over the shoulderconnecting the same with the house-pipe. rlhe proper aperture b3 is thenfitted over the adjacent arm b, thus effectual] y holding` the latteragainst outward movement and making it possible to use the test-tube inpipes not provided with the flange a2.

l. As an article of manufacture, a pipe having an enlarged end,terminating in an internal shoulder adjacent the body of the pipe, and acap and clamping member, the cap being adapted to fit tightly over thesaid enlarged end, and the clamping member comprising a holder, means toclamp the same to the cap, and a plurality of arms extending from theinner end of the holder and adapted to rest adjacent said shoulderagainst an internal flange provided therefor, said flange being removedfrom said shoulder only a sufiieient distance to permit the necessarylateral or rotary movement therein of the arms and prevent tippingthereof, or movement longitudinally of the pipe, substantially asdescribed.

2. As an article of manufacture, a pipe having an enlarged end,terminatingin. an internal shoulder adjacent the body of the pipe, and acap and clamping member, the cap being adapted to (it tightly over thesaid enlarged end, packing beinginterposed between the cap and end, andthe clamping member comprising a holder, means to clamp the same to thecap, packing being interposed to render the connection Water-tight, anda plurality of arms extending integrally from the inner end of theholder, a flange being provided closely adjacent said shoulder to permitthe necessary lateral movement of the arms between said shoulder andila-nge, and to hold the saine against movement longitudinally of thepipe in either direction, substantially as described.

3. As an article of manufacture, a pipe having an enlarged end, and alian ge within said end, said iiange being removed from the outer end ofthe enlargement to permit the coupling together of said pipe withanother pipe, and a cap and clamping member therefor, said cap beingadapted to engage and close the open end of said enlargement, and saidclamping member being adapted to engage said cap and said flange toclamp the same together, substantially as described.

4. The combination with the cap and clamping member, of the tube havingat its inner end means to plug a sewer-pipe, said tube being provided atits outer end with an inlet and at its inner end with an outlet, andalso having an intermediate opening through the walls thereof, avalve-seat formed in said outlet, a valve therefor, and means to operatesaid valve from the outer end of said tube, substantially as described.

5. he combination with the cap and clamping member, of thel tube havingat its inner end a iieXible diaphragm held thereon between two clampingflanges, to plug a sewerpipe, said tube being provided at its outer endwith an inlet and at its inner end with an outlet, and also having anintermediate opening through the walls thereof, a valve-seat formed insaid outlet, a valve therefor, and means to operate said valve from theouter end of said tube, substantially as described.

6. As an article of manufacture, a pipe having an enlarged end, ashoulder between the body of t-he pipe and said end, and a iiangeclosely adjacent to the said shoulder, said enlarged end projectingforward from said flange without interruption a sufficient distance topermit the coupling together therewith of another pipe, substantially asdescribed.

ln testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

CHARLES Il. ROLLINS.

lVitnesses:

ADDIE F. DANIELS, FREDERICK L. EMERY.

IOO

